Graham also pushed Wray to tell the whole committee that any indication of interference in an American election is something that should be reported to the FBI.

Following is a transcript of the video.

SENATOR LINDSEY GRAHAM:Should Donald Trump Jr. have taken that meeting?

CHRISTOPHER WRAY:Well, Senator I don't - I'm hearing for the first time your description of it so I'm not really in a position to speak to it. I gather that Special Counsel Mueller —

GRAHAM:Well, let me ask you this. If I got a call from somebody saying the Russian government wants to help Lindsey Graham get reelected, they've got dirt on Lindsey Graham's opponent, should I take that meeting?

WRAY:Well, Senator I would think you'd want to consult with some good legal advisers before you did that.

GRAHAM:So, the answer is, should I call the FBI?

WRAY:I think it would be wise to let the FBI know —

GRAHAM:You're going to be the director of the FBI bell. So, here's what I want you to tell every politician. If you get a call from somebody suggesting that a foreign government wants to help you by disparaging your opponent —tell us all to call the FBI.

WRAY:To the members of this committee, any threat or effort to interfere with our elections from any nation-state, or any non-state actor, is the kind of thing the FBI would want to know.

GRAHAM:Alright, so I'll take that we should call you, and that's a great answer. You say that Mueller's a good guy, right?

WRAY:That's been my experience, yes.

GRAHAM:And you'll do anything necessary to protect him from being interfered with when it comes to doing his job?

WRAY:Absolutely, I think —

GRAHAM:Do you believe that, in light of the Don Jr. email and other allegations, that this whole thing about Trump campaign and Russia is a witch hunt? Is that a fair description of what we're all dealing with in America?

WRAY:Well, Senator I can't speak to the basis for those comments. I can tell you that my experience with Director Mueller —

GRAHAM:I'm asking you, as the future FBI director, do you consider this endeavor a witch hunt?